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11. Employee and Director Benefit Programs (Details Narrative) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Employee And Director Benefit Programs Details Narrative      
Employee contributions, percentage 4.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch 4.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch 3.50%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
Defined Benefit Plan, Contributions by Employer $ 439us-gaap_DefinedBenefitPlanContributionsByEmployer $ 430us-gaap_DefinedBenefitPlanContributionsByEmployer $ 345us-gaap_DefinedBenefitPlanContributionsByEmployer
Expenses incurred for benefits relating to the postretirement benefit 422us-gaap_PensionAndOtherPostretirementBenefitExpense 395us-gaap_PensionAndOtherPostretirementBenefitExpense 546us-gaap_PensionAndOtherPostretirementBenefitExpense
Postretirement medical benefits expense, including amortization of the transition obligation     24us-gaap_OtherPostretirementBenefitExpense
Benefits paid $ 184us-gaap_PaymentsForPostemploymentBenefits $ 142us-gaap_PaymentsForPostemploymentBenefits